4-1. ENGINE MAINTENANCE (CONT)
c. Cylinder Heads.
This task covers disassembly, cleaning, inspection, repair,
and reassembly of cylinder heads.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Drill, 3/8 inch capacity
Automotive Fuel and Electrical System Repair Tool Kit
Micrometer, zero to 5 inches
Reamer (FSCM 45225 PN CAS-1086)
Bushing, 13/16 inch (minimum) inside diameter by 0.953 inch long
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Guides, valve (FSCM 10988 PN A41783)
Plugs, expandable, three (FSCM 10988 PN A58620)
Plugs, expandable, two (FSCM 10988 PN A34124)
PRELIMINARY PROCEDURE: Valves removed (page 3-74).
steps (1) and (2) below only if
i n s p e c t i on
replacement of plugs (1
(1) Remove three plugs
hole through their
tes need for
(1) by drilling a
center and pulling
them out using a suitable tool. Discard
(2) Remove two plugs (2) by drilling a hole
through their center and pulling them
out using a suitable tool. Discard
Perform following step only if inspec-
1. Plugs (3)
2. Plugs (2)
3. Valve guides (4)
4. Cylinder head
tion indicates need for replacement of
valve guides (3).
Using hydraulic press, press out four
valve guides (3) from top of cylinder
head (4). Discard valve guides (3).